PolymarketCheck availabilityNo KYC2% feeCurrent implied probabilityBelow 190 28%-2.5%Leader of 10 outcomes
Market quality
80 / 100
High quality24h Volume
$3.9K
Liquidity
$199.5K
High liquidityBid / Ask
27.0% / 29.0%
Spread
7.4%
Moderate spread7d Change
-2.5%
Market data
Updated 5 minutes ago
Dec 19, 25, 2:11 AMNov 3, 26, 12:00 AM
Trends
Paper funds only — no real moneyNot financial advice
Selected outcome
Below 19028%
Also available on PredictIt
How many House seats will Republicans win in the 2026 midterm election?
22%
14%
14%
+8 more outcomes
Retail prediction exchange
Total Vol$0
24h Vol$0
PREDICTIT
Also available on Kalshi
How many House seats will Republicans hold after the Midterms?
7mo
21%
+0.1%9%
+3.0%11%
+8 more outcomes
89 • High qualityModerate spreadHigh liquidity
Total Vol$2M
24h Vol$8.7K
KALSHIRules
The 2026 midterm elections are scheduled to be held on November 3, 2026.
- This market will resolve according to the number of seats held by the Republican Party in the US House of Representatives as a result of the 2026 midterm elections.
- This market will resolve based on the results of all US House of Representatives elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026.
- If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
- A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources.
- Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.
Probabilities may differ due to different market structures, fees, and participant pools.
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The 2026 midterm elections are scheduled to be held on November 3, 2026.
- This market will resolve according to the number of seats held by the Republican Party in the US House of Representatives as a result of the 2026 midterm elections.
- This market will resolve based on the results of all US House of Representatives elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026.
- If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
- A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources.
- Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.